221321940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{526957}}^1$

素因数の和:526976

約数の個数: 48

約数和(自身を含む): 708231552

約数和(自身を除く): 486909612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 526957, 1053914, 1580871, 2107828, 2634785, 3161742, 3688699, 5269570, 6323484, 7377398, 7904355, 10539140, 11066097, 14754796, 15808710, 18443495, 22132194, 31617420, 36886990, 44264388, 55330485, 73773980, 110660970, 221321940]

約数ペア:

[(1, 221321940), (2, 110660970), (3, 73773980), (4, 55330485), (5, 44264388), (6, 36886990), (7, 31617420), (10, 22132194), (12, 18443495), (14, 15808710), (15, 14754796), (20, 11066097), (21, 10539140), (28, 7904355), (30, 7377398), (35, 6323484), (42, 5269570), (60, 3688699), (70, 3161742), (84, 2634785), (105, 2107828), (140, 1580871), (210, 1053914), (420, 526957)]